Grease lubricator.



F. LOWRY.

GREASE LUBRIGATOR.

APPLICATION FILED JUNI: 13, 1912.

1,131,639. Patented Mar.9,1915.

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THE MORRIS PETERS CO.. FHoTO-LITHO., wASHJNGmN. C

F. LOWRY. GREASE LUBRICATOR.. APPLIGATION FILED JUNE 1s, 1912.

Patented Mar. 9, 1915.

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FRANK LGWRAY, 0F STEUBENVILLE, CHIC), ASSIGNOR T0 THE OHIO GREASE GCMPANY,

OF LOUDONVILLE, QEIEQ, A. CGRPORATEON QF OHIO. i

GREASE LUBBIUATOR.

Application filed .Tune 13, 1912.

T0 all whom it may concern Be it known that l, FRANK Lower, a citi- Zen of the United States, residing at Steubenville, in the county of Jefferson and State of Uhio, have invented certain new and useful improvements in Grease Lubricators, of which the following is a specification.

llfhe invention relates to improvements in grease lubricators of the general class set forth in Letters Patent No. 803,296, reissued as No. 13,269; No. 803,297, reissued as No. 13,270; No. 946,450; and No. 946,484; and the object of the present invention is to provide a lubricator which will more completely heat the grease, under all external conditions of temperature, and maintain the samein the heated condition necessary or desirable for atomizing the grease for most eficiently lubricating all the parts of theengine. The efficiency of lubricators of this class depends largely upon the temperature to which the grease is heated and maintained, for the reason that, when the grease is more highly heated, it is reduced to a thinner liquid which permits the formation of drops of a minimum size, thus giving a maximum control of the quantity of lubricant fed into the steam supply line; and, at the same time, the more highly heated and smaller sized drops permit the lubricant to be more thoroughly atomized so that it will more completely vaporize and saturate the live steam in the supply line.

The object of the improvements, thus referred to, is attained byA locating the feed chamber wholly within the grease chamber, and by providing a vertical straight-way port in one end of the feed chamber leading directly from the grease chamber, and a lateral delivery tube leading from the other end of the feed chamber to the steam line, with a steam pipe entering the opposite side of the chamber co-aXial with the delivery tube, whereby the liquid grease will flow directly from the grease into the feed chamber without any change of direction, and will be positively atomized and driven into the delivery pipe by live steam from the steam pipe, without being'chilled at any point in the feed line thus formed.

rfhe invention, thus set forth in general terms, is illustrated with respect to two slightly modified forms thereof in the accompanying drawings, in which Figure 1 is a vertical section of a pre- Speccation of Letters Patent.

Patented Mar. 9, 1915.

Sera] No. 703,369.

ferred form of the improved lubricator; Fig. 2, across section thereof on line 2 2, Fig. 1; Fig. 3, a cross section thereof on line 3 3, Fig. 1; Fig. 4, a vertical section of a slight modification of the preferred form of the improved lubricator; Fig. 5, a cross section of the same on line 5 5, Fig. 4; and Fig. 6, a cross section on line 6 6, Fig. 4.

rhe same or similar numerals refer to the same or similar parts throughout the drawings.

rlhe grease reservoir or chamber 1 or 1a is formed by the outer case 2 or 2a of the lubricator, and the feed chamber or 3a is formed by the inner case 4 or 4a; the walls of which inner case are preferably located wholly within the walls of the outer case, with a free intervening space or interval on all sides and at both ends, as shown in Figs. 1, 2 and 3, but may have one side wall thereof formed integral with the external case, as shown in Figs. 4, 5 and 6.

For a drop feed lubricator, the feed port 5 is formed in the nipple 6 centrally formed or secured in the upper wall of one side wall of the inner case 4 forming the feed cham ber, and this port is vertically positioned so that the grease can fiow directly downward without any change of direction from the contents of the grease chamber above the feed chamber. |lhe feed valve 7 is mounted by its stem 8 in the upper end of the outer case, which valve is adapted to seat in the upper end of the feed port, and, by proper adjustment, to control the iow of liquid grease therethrough.

rlhe transverse delivery tube 9 or 9a eX- tends through the separate walls of the outer and inner cases and the intervening interval, in the form of lubricator shown in Fig. 1, or extends through the common wall of said cases, as shown in the modified form in Fig. 4; and this tube leads laterally from the lower end 0f the feed chamber, and its outer end communicates with the delivery pipe 10, which leads into the steam supply line 11, and is preferably provided with the stop valve 12, as shown in the drawings. The transverse steam tube 13 or 13a extends through the separate walls of the outer and inner cases, and the intervening interval at the lower end of the feed chamber, on the opposite side from and co-axial with the delivery tube, so as to discharge across the bottom of the feed chamber into the delivery pipe, not shown, as, for instance, with thel steam line 11 above the delivery pipe connection therewith; and the three-way fitting also communicates with the condensing pipe I 17 `which maybe provided with the condensing chamber 18, and leads to the ycondensing.; tube 19v which opens into the lower portion of? thel grease chamber; which condensing `tube is preferably provided with the stop valve 20.

Sight glasses 21are provided'in opposite Y sidesA of the uppei end4 of the outer case in the pla-nel of-the entrance'to the feedport, 'so-thatthelevel ofthe oil inthe lubricator with reference to the opening of the feed poort mayv be viewed* from either side of the lubricator; and the sight glasses 22 are provided in opposite sides ofthe upper'end of the'iniierT casel in the'plane ofthe lower end of' the feed jet, the tubular connection 23 beingprov'ided around thel sight glasses 22 through the adjacent walls of the outer and inner cases-'andthe interveningintervals, so 'thatitheformation of drops ofgrease on the lower? endoffthe feed jet may be viewed from either side of the lubricator.

Theusual feed' plug 24 is provided in the upper end of theI outerV case-2er 2a through whichthe grease chamber 1 or 1 isV filled with grease or' other lubricant; and the usual vdrain plu-g 25 and drain valve `26 being'provided in thelower end lof the outer case! for drainingl off the water of! condensation. Y Y

In use', the grease chamber is "i'illedwith grease* or other lubricant,y and the steam valve 15, the condensation valve 19, andthe delivery-pipe valve 11 are opened. The water of condensation formed in the condensing pipe and chamber flows downward through the condensing'tube into the lower endA ofthe grease chamber, andllive'steam flows fthreughf the steam pipev and the steam tu-befintorand` across the lower' end ofthe feed chamber into the delivery tube, and ailso rises-upward into and fills the feed chamber. The-heatradliating from the condensingtube' 19, the steam tube 13V or l?)a and more particularly from the inner-case 11 orl 11;L around the feed chamber, heats the lubricantin' thegrease chamber to a'liquid form, and the same floatsuponthe-water of condensationas it risesinthe grease chaml ber; The feed valve 7 is' then opened, ac-

cording to vthe'rate'of feeddesired, and the liquid grease flows directly downwardfrom ther grease chamber through the straightway feed port', and forms' a dro-pf oir the `-lowerfendf of the nipple 5. The-drop, when into the feed pipe and steam line in the manner set forth in the prior Patentllo. 916,450, above referred to.

It is evident that the location of the feed `chamber entirely within the grease chamber not-only conserves the/heat within the feed chamber, but suchl heat? as radiates therefrom. serves: to hea-t'the surrounding lubricant; that there is audirect communication fromV the body of lgrease inA the greasechambei', without any changeiof direction through the straight-way feed port, pinto" the feed chamber; -that there is no changenof': direction' of thegrease from theftim'efit enters the upper end of the feed" port until it is driven into the delivery tube, excepting only when itis impinged by the flow of steamr from the steam tube; and finally that thel grease is at all times kept atuthefmaXimum degree 'of temperature fromV the time it leaves the grease chamber' until'it .is vaporizedl andy driven intofandf throughthe delivery tube.

I claim:

1. A" lubricator Aincluding anV outer case` forming a greasev chamber, an inner case forming a feedchamber within'the grease chamber with' spaced intervals between the upper and lower walls of thel cases, a straightway feed port in one end'wallof the feed, chamber leading directlyfrom the grease chamber in'tothe feed chamber, a delivery tube leading laterallyf from the other end of the feed chamber, and asteam tube leading through the grease chamber into the feedV chamber and discharging across the same'into the delivery tube.

8. A lubricator including an outer'ca-se forming a grease chamber, an inner case having certain' of itsv walls including the vtop wall spaced bodily within the-walls-of the outer case forming a feed chamber therein, a' feed port in said top wall of the inner caseV communicating from the. crease chamber intoithe feed chamber, a delivery tubeleading j laterallyfrom the other' endA the grease chamber into the feed chamber, a delivery tube leading laterally from the loWer end of the feed chamber, and a steam tube leading through the grease chamber into the feed chamber and discharging into 15 the delivery tube.

FRANK LOWRY.

lVitnesses:

WM. FELLER, RUTH A. MILLER.

Gopies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents Washington, D. C. 

